Ontario is a distinctive boys' name in United States, ranking #6983 in 2010 with 12 recorded births. The name reached its all-time peak in 1996 with 29 births ranking #2658. Since 1996, the popularity has decreased by 58.6%. In 2010, approximately 1 in every 159,868 boys born was named Ontario. FALLING Recent data shows the name is currently falling.